Through this innovative service it is possible to obtain on demand some of the information which
is normally available through bulletins and announcements or that is not available at all
otherwise. To obtain such information it is necessary to send an APRS message to the system
with the information required and the system will then send back the appropriate information,
if available.

This service is available locally (QTH JN63SO45NW) on the 144.950 MHz frequency at 1200 baud as
well as on the global APRS network. The system transmits the eventual reply only once and does
not attempt any message retransmission.

Information available through the APRS On Demand service

- "HELP": Show a list of the available commands
- "?APRSS": Current operational status of the AMPR.org gateway
- "?APRSP": Position of the IZ6RDB station
- "TIME": Current time (source: INRIM)
- "DATE": Current date (source: INRIM)
- "BLN1": Critical weather bullettin
- "BLNA": Critical weather forecast
- "METEOALARM" or "EUMETNET": EUMETNET Meteoalarm (for the Marche region)
- "BLNE" or "Northern Adriatic": Storm report for Northern Adriatic sea (source: italian air force)
- "BLNH" or "Central Adriatic": Storm report for Central Adriatic sea (source: italian air force)
- "BLNK" or "Southern Adriatic": Storm report for Southern Adriatic sea (source: italian air force)
- "METEOBEACON": Sends wheather data, if available (APRS format)
- "SEISMIC locality": Latest seismic event, eventually occurred during the day, at a given locality (source: INGV)
- "TRAFFIC" or "CCISS": Latest road traffic information for the Marche region (source: CCISS)
- "TRAFFIC region" or "CCISS region": Latest road traffic information for the specified italian region (source: CCISS)
- "SUN": Sunrise and Sunset (BLNN)
- "MOON": Moonrise and Moonset (BLNO)
- "REPEATERS": Sends the details about the local analog repeaters (source: ARI)
- "REPEATERS region_designator": Sends the details about the analog repeaters in a given Italian region (the designator is the first word of the region's name, eg. "Marche", or "Valle"; source: ARI)
- "REPEATERS region_designatorprovince_designator": Same as above, but limited to a given province within a given region (two letters designator for the province; source: ARI)
- "HEARDHF" or "HEARDVHF": Sends the number of stations heard during the day (on HF and VHF respectively; provides different results in local/global frequency queries)
- "IGATEHF" or "IGATEVHF": Sends the operational status of the APRS IGate (HF or VHF)
- "EMERGENCYHF", "EMERGENCYVHF" or "EMERGENCYAPRS": Sends the number of APRS emergencies received during the day (HF, VHF or all)
- "WHEREIS callsign": Provides the last known position of the station with the given callsign
- "PING AMPR_address": Runs ping to an AMPR host and returns the result
- "NSLOOKUP AMPR_address": Runs a DNS search of an AMPR address and returns the result
- "SAT satellite: Provides the next passage prediction for a given satellite (no argument for the list)
- "CALCULATOR expression": Calculates a numeric expression using bc
- "EMAIL message": Sends an email message to the system operator (maximum 61 characters)
- "FIRMWARE": Sends the firmware version loaded in the transceiver